Heating device



(No Model.)

A. ELMEND'ORP.

HEATING DEVICE.

No. 600,910. Patented Mar. 22,1898.

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UNTTED STATES PATENT OFFICE.

ALBERT ELMENDORF, OF CHICAGO, ILLINOIS, ASSIGNOR, BY DIRECT AND MESNEASSIGNMENTS, OF TlVO-THIRDS TO EVERETT H. REXFORD, OF

BLUE ISLAND, ILLINOIS.

HEATING DEVICE.

SPECIFICATION forming part 01 Letters Patent No. 600,910, dated March22, 1898. Application filed December 2'7, 1897. Serial No. 663 ,612. (Nomodel.)

To aZZ whom it may concern-.-

Be it known that I, ALBERT ELMENDORF, residing at Chicago, Cook county,Illinois, have invented certain new and useful Im- 5 provements inl-Ieating Devices, of which the following is a specification.

My invention relates to heating devices; and its object is to produce anovel heatingdrum or radiator to be used in connection with stovepipes,for instance, and for all analogous purposes. In fact my invention isapplicable to and intended to be used in connection with any source ofheat in order to utilize and radiate the heat to its fullest extent forusual heating purposes or for any purpose.

In the drawings, Figure 1 is an elevation of my drum connected to asmoke-flue or the like; Fig. 2, an enlarged sectional view of the drum,showing the'spiral diaphragm or par-.

tition in position to permit of direct draft; Fig. 3, a similar view,but showing the partition turned so as to cause an indirect draftthrough the drum before the heated gases,

850., can escape from the flue; Figs. 4 and 5,

sectional elevations on lines 4 and 5, respectively, of Figs. 2 and 3,respectively; Fig. 6, an end view of a portion of the drum, showing thecheck-draft; and Fig. '7, a sectional 3o elevation of a drum with amodified form of spiral partition therein.

My radiating device comprises a radiating chamber or drum 1, which maybe of any suitable size and proportions. It is preferably made complete,as shown in Fig. 1, in order that it may be easily attached to anyordinary stovepipe, in which case it is provided with the shortextensions 2 and 3, forming the inlet and outlet, respectively, for the40 drum. The inlet and outlet are preferably located opposite each otherand at substantially the central longitudinal portion of the drum, asshown in Figs. 1, 4, and 5. However, it will be understood that theseexten- 5 sions are not essential to the drum, but are only preferableand convenient in coupling to a stovepipe or the like.

The drum is closed at its ends, butis preferably provided with end capsor closures 4 5o anii 5, either or both of which may be removab e.

Within the drum is arranged a spiral form of diaphragm or partition 6,which extends across the flue opening, but leaves small spaces orchambers 7 and 8 at the closed ends of the drum. This diaphragm fits thedrum, so as to form two spiral chambers on either side of the flue andextending to the end chambers in a spiral path along one side of thespiral and thence back along the reverse side of the spiral to the flue,so as to allow the heated air and gases to escape to the flue.

The diaphragm is preferably rotatable and removable and bears at one endin the cap 4 by means of an-extending piece 9. Its opposite end isprovided with a handle 10, extending through cap 5, whereby thediaphragm may be turned as desired. This cap being preferably removable,the entire diaphragm may be withdrawn and the drum cleaned by theoperation of Withdrawing Whenever desired.

When the diaphragm is positioned as shown in Figs. 2 and 4, the directdraft is open and the heated air and gases are free to pass directlyacross the drum, as illustrated by the arrows in Fig. 4, but when thesame is turned, as shown in Figs. 3 and 5, this direct passage isinterrupted, and the heated gases, &c., are deflected by the diaphragmitself to either side, following the spiral outwardly along one sidethereof, and after passing through the end chamber traveling backwardalong the reverse side of the spiral to the flue. The heated air andgases, 850., are thus given an indirect path through a heating-drum orradiator device, and the diaphragm deflects them against the walls ofthe drum in both .the outward and inward travel, whereby all the heat isabsorbed and utilized. The course 0 of the heated gases through thisradiatingdrum is shown by arrows in Figs. 3 and 5.

It is obvious that the drum or radiator, as well as the diaphragm, maybe made of any desired size, and it is also obvious that the 5 diaphragmmay have any desired contour so long as the desired object is subserved.

As shown in Figs. 3 and 6, any ordinary and well-known check-draftdevice 11 may be provided for ventilating purposes when the drum is notused for heating purposes. When the diaphragm is turned to permit of adirect draft, the check-draft may be opened, and the air of a room maybe drawn into the drum and passed out of the flues. It will beunderstood, however, that this regulated opening is closed when the drumis used as a radiator.

It will be apparent that by slightly turning the diaphragm from theposition shown in Fig. 3, so as to partially open the direct draft atthe side of the flue next to one branch of the drum, that branch will becut out as a radiator, but the other branch will continue as a radiator.It will be understood that the drum may be arranged in any desiredposition with respect to the flue-that is, horizontal, vertical, orotherwise, as may be desired or found expedient; and while I have hereinshown a diaphragm in a drum projecting on either side of a flue it willbe understood that a single branch from the flue may be used in whichthe diaphragm extends across the flueopening and whose turningdetermines whether the draft is direct through the flue or indirect in aspiral path through a heating-drum.

The object of the end chambers in the drum is to make a continuous paththrough the drum, so that the heated air and gases after flowingoutwardly can double back and flow along the reverseside of thediaphragm or partition. To accomplish this object, I prefer to make thediaphragm shorter than the drum, so as to leave end spaces or chambers;but it is obvious that other expedients might be adopted withoutnecessitating such shortening of the diaphragm. Therefore any manner ofmaking such path continuous is understood to be an equivalent to an endchamber and be comprehended under that term as used in the claims.

In Fig. 7 I have shown a modified form of the diaphragm in which themiddle spiral is made wider than those at either end. This middle spiralis sufficiently wide so that the direct flue will be entirelyinterrupted when turned to the proper position. The other spirals aremade narrower, so that the spiral path will be lengthened withoutincreasing the length of the drum, to the end that more time andopportunity will be afforded for the absorption and radiation of heat.The operation of this form of construction is the same as the one beforedescribed.

While I have herein in the specification and claims spoken of a smokepipe or flue, I wish it understood that I do not limit myself to the useof such pipe, as it is obvious that my invention will work in connectionwith any suitable source of heat which it is desired to radiate. Suchterm is therefore used with this understanding and as having this scopeand meaning.

By the use of my invention the greatest amount of heat obtainable isutilized and radiated by a means which is simple and reliable and whichcan be regulated to suit requirements. Furthermore, my device maybe'applied to the many difierent kinds of heating devices, to all kindsof stoves and the like which are now in use and can also be applied tofurnaces, stoves, &c., when manufactured.

Although I have described more or less precise forms and details ofconstruction, I do not intend to be understood as limiting myselfthereto, as I contemplate changes in form,proportion of parts, and thesubstitution of equivalents'as circumstances may suggest or renderexpedient. Furthermore, I do not limit myself to the application shownfor illustration of my invention, as I contemplate using my inventionwherever applicable.

I do not herein claim, broadly, the use of a spiral diaphragm orpartition in a radiatingdrum whereby the heated air and gases deflectedinto such drum are caused to follow a spiral path to the end of the drumand back, inasmuch as I have made such invention the subject of anapplication heretofore filed by me on September 27, 1897, Serial No.653,139.

I claim- 1. In a heating device, the combination of a flue or pipe, abranch pipe therefrom closed at its outer end and a spiral diaphragmlocated therein and extending across the flue, whereby an indirect draftor passage is provided which runs spirally to the closed end of thebranch pipe and then back again to the flue along the reverse side ofthe spiraldiaphragm.

2. In a heating device, the combination of a flue or pipe, a branch pipetherefrom closed at the outer end and a movable spiral diaphragm locatedtherein and extending across the heat-flue, the diaphragm in oneposition permitting a direct draft but when in another position causingan indirect draft along one side of the diaphragm in a spiral path tothe closed end of the branch pipe and then along the reverse side of thediaphragm in a spiral path to the flue.

3. In a heating device, the combination of a flue or pipe, a branch pipeor radiating-drum extending across said flue and communicatingtherewith, such drum being closed at its ends, and a rotatable spiralpartition located in said drum and forming chambers at the ends of thedrums, the partition extending across the flue, whereby the partition inone position permits direct draft but in another position interrupts thesame and deflects the heated air, gases, &c., in either direction alonga spiral path to the end chambers of the drum along one side of thepartition and then along the reverse side of the partition to the flue.

at. In a heating device, the combination of a flue or conduit, acommunicating radiatingdrum extending thereacross and having closedends, a rotatable and removable spiral partition located in said drumbut slightly shorter than the drum whereby end chambers are formed, anda removable cap or closure for one end of the drum whereby the partitionmay be removed, the partition in one position permitting a direct draftthrough the flue but in another position, deflecting the heated air andgases into the drum along a spiral path to the end chambers and thenback again to the flue.

5. In a heating device, the combination of a flue or pipe, acommunicating radiating-drum extending thereacross and having closedends, and a spiral partition located in said drum, the width of thatspiral directly across the flue being greater than the others.

6. In aheating device, the combination of a flue for heated air andgases, a communicating radiating-drum extending thereacross and havingclosed ends, anda spiral partition in said drum, the width of the middlespiral thereof being sufficient to close the direct flue but the widthof spirals at either side of such middle spiral being narrower wherebythe spiral path is lengthened through the drum.

7. A heat-radiating device, comprising a drum closed at its ends andhaving an inlet and outlet oppositely located at its centrallongitudinal portion for the passage of heated air and gases, and aspiral diaphragm therein which in one position allows the heated air andgases to pass directly across the drum and in another positioninterrupts such direct passage and deflects the same as they enter theinlet in either direction along a spiral path on one side of thepartition to the ends of the drum and thence back along the reverse side"of the partition to the outlet.

8. Inaheating device, the combination of a flue a communicatingradiating-drum closed ALBERT ELMENDORF.

Witnesses:

SAMUEL E. HIBBEN, H. K. I-IIBBEN.

